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S0X4A00A20300000000CAAT00 Electronic Control System Fail-safe Function Back-up Function Self-diagnosis Two Driving Cycle Detection Method 11-10 Fuel and Emissions Systems System Descriptions The functions of the fuel and emission control systems are managed by the powertrain control module (PCM). When an abnormality occurs in the signal from a sensor, the PCM ignores that signal and assumes a pre-programmed (MIL) and stores the diagnostic trouble code (DTC) in erasable memory. When the ignition is first turned on, the PCM To prevent false indications, the ‘‘two driving cycle detection method’’ is used for some self-diagnostic functions. 03/07/29 09:17:47 61S0X050_110_0010 When an abnormality occurs in the PCM, the injectors are controlled by an independent back-up circuit to permit When an abnormality occurs in the signal from a sensor, the PCM supplies ground for the malfunction indicator lamp |